Description
The LM35 is a precision integrated-circuit temperature sensor with an output voltage linearly proportional to the Celsius temperature. It accurately measures temperatures ranging from -55°C to +150°C with a linear scale factor of 10mV/°C. This sensor is widely used in various temperature sensing applications due to its simplicity, accuracy, and ease of integration.
Key Features
- Linear output voltage proportional to Celsius temperature
- Wide temperature measurement range: -55°C to +150°C
- High accuracy and stability
- Low self-heating capability
- Low output impedance
- Calibrated directly in Celsius (without requiring additional components)
- Easily interfaced with microcontrollers, ADCs, and other circuitry
Specifications
- Operating Temperature Range: -55°C to +150°C
- Output Voltage Range: 0 mV to 1.5V (corresponding to -55°C to +150°C)
- Output Voltage Scale Factor: 10 mV/°C
- Accuracy: ±0.5°C (typical) at 25°C
- Supply Voltage: 4V to 30V
- Low Quiescent Current: 60 µA (typical)
- Output Impedance: 0.1 ohms (typical)
Applications
- Environmental monitoring systems
- HVAC (Heating, Ventilation, and Air Conditioning) control systems
- Industrial temperature control
- Automotive temperature sensing
- Medical equipment
- Consumer electronics
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